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Gear Ratio Table - An overview of what distance you cover with what gear
12 June 2020
The table below shows the distances (in metres) that can be covered with one pedal stroke using different sprocket combinations on a road bike with 28″ wheels. The column on the left shows the number of teeth on your rear sprocket and the top row shows the number of teeth on your front chainring. For example, a ratio of 39 by 25 equals to a distance of 3.27 metres after one pedal stroke. A ratio of 40 by 14 equals to a distance of 5.99 metres.
| 28 | 30 | 32 | 34 | 36 | 38 | 39 | 40 | 42 | 44 | 46 | 48 | 50 | 51 | 52 | 53 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11 | 5.34 | 5.72 | 6.10 | 6.48 | 6.86 | 7.24 | 7.43 | 7.62 | 8.00 | 8.38 | 8.77 | 9.15 | 9.53 | 9.72 | 9.91 | 10.10 |
| 12 | 4.89 | 5.24 | 5.59 | 5.94 | 6.29 | 6.64 | 6.81 | 6.99 | 7.34 | 7.69 | 8.03 | 8.38 | 8.73 | 8.91 | 9.08 | 9.26 |
| 13 | 4.51 | 4.84 | 5.16 | 5.48 | 5.80 | 6.13 | 6.29 | 6.61 | 6.77 | 7.09 | 7.42 | 7.90 | 8.06 | 8.22 | 8.38 | 8.55 |
| 14 | 4.19 | 4.49 | 4.79 | 5.09 | 5.39 | 5.69 | 5.84 | 5.99 | 6.29 | 6.59 | 6.89 | 7.19 | 7.49 | 7.64 | 7.79 | 7.93 |
| 15 | 3.91 | 4.19 | 4.47 | 4.75 | 5.03 | 5.31 | 5.45 | 5.59 | 5.87 | 6.15 | 6.43 | 6.71 | 6.99 | 7.13 | 7.27 | 7.41 |
| 16 | 3.67 | 3.93 | 4.19 | 4.45 | 4.72 | 4.98 | 5.11 | 5.24 | 5.50 | 5.76 | 6.03 | 6.29 | 6.55 | 6.68 | 6.81 | 6.94 |
| 17 | 3.45 | 3.70 | 3.95 | 4.19 | 4.44 | 4.69 | 4.81 | 4.93 | 5.18 | 5.42 | 5.67 | 5.92 | 6.16 | 6.29 | 6.41 | 6.53 |
| 18 | 3.26 | 3.49 | 3.73 | 3.96 | 4.19 | 4.42 | 4.54 | 4.66 | 4.89 | 5.12 | 5.36 | 5.59 | 5.82 | 5.94 | 6.06 | 6.17 |
| 19 | 3.09 | 3.31 | 3.53 | 3.75 | 3.97 | 4.19 | 4.30 | 4.41 | 4.63 | 4.85 | 5.07 | 5.30 | 5.52 | 5.63 | 5.74 | 5.85 |
| 20 | 2.93 | 3.14 | 3.35 | 3.56 | 3.77 | 3.98 | 4.09 | 4.19 | 4.40 | 4.61 | 4.82 | 5.03 | 5.24 | 5.34 | 5.45 | 5.55 |
| 21 | 2.79 | 2.99 | 3.19 | 3.39 | 3.59 | 3.79 | 3.89 | 3.99 | 4.19 | 4.39 | 4.59 | 4.79 | 4.99 | 5.09 | 5.19 | 5.29 |
| 22 | 2.67 | 2.86 | 3.05 | 3.24 | 3.43 | 3.62 | 3.72 | 3.81 | 4.00 | 4.19 | 4.38 | 4.57 | 4.76 | 4.86 | 4.95 | 5.05 |
| 23 | 2.55 | 2.73 | 2.92 | 3.10 | 3.28 | 3.46 | 3.55 | 3.65 | 3.83 | 4.01 | 4.19 | 4.37 | 4.56 | 4.65 | 4.74 | 4.83 |
| 24 | 2.45 | 2.62 | 2.79 | 2.97 | 3.14 | 3.32 | 3.41 | 3.49 | 3.67 | 3.84 | 4.02 | 4.19 | 4.37 | 4.45 | 4.54 | 4.63 |
| 25 | 2.35 | 2.52 | 2.68 | 2.85 | 3.02 | 3.19 | 3.27 | 3.35 | 3.52 | 3.69 | 3.86 | 4.02 | 4.19 | 4.28 | 4.36 | 4.44 |
| 26 | 2.26 | 2.42 | 2.58 | 2.74 | 2.90 | 3.06 | 3.14 | 3.22 | 3.39 | 3.55 | 3.71 | 3.87 | 4.03 | 4.11 | 4.19 | 4.27 |
| 27 | 2.17 | 2.33 | 2.48 | 2.64 | 2.79 | 2.95 | 3.03 | 3.11 | 3.26 | 3.42 | 3.57 | 3.73 | 3.88 | 3.96 | 4.04 | 4.11 |
| 28 | 2.10 | 2.25 | 2.40 | 2.55 | 2.69 | 2.84 | 2.92 | 2.99 | 3.14 | 3.29 | 3.44 | 3.59 | 3.74 | 3.82 | 3.89 | 3.97 |
| 29 | 2.02 | 2.17 | 2.31 | 2.46 | 2.60 | 2.75 | 2.82 | 2.89 | 3.04 | 3.18 | 3.32 | 3.47 | 3.61 | 3.69 | 3.76 | 3.83 |
| 30 | 1.96 | 2.10 | 2.24 | 2.38 | 2.52 | 2.65 | 2.72 | 2.79 | 2.93 | 3.07 | 3.21 | 3.35 | 3.49 | 3.56 | 3.63 | 3.70 |
| 31 | 1.89 | 2.03 | 2.16 | 2.30 | 2.43 | 2.57 | 2.64 | 2.70 | 2.84 | 2.97 | 3.11 | 3.25 | 3.38 | 3.45 | 3.52 | 3.58 |
| 32 | 1.83 | 1.97 | 2.10 | 2.23 | 2.36 | 2.49 | 2.55 | 2.62 | 2.75 | 2.88 | 3.01 | 3.14 | 3.28 | 3.34 | 3.41 | 3.47 |
| 33 | 1.78 | 1.91 | 2.03 | 2.16 | 2.29 | 2.41 | 2.48 | 2.54 | 2.67 | 2.79 | 2.92 | 3.05 | 3.18 | 3.24 | 3.30 | 3.37 |
| 34 | 1.73 | 1.85 | 1.97 | 2.10 | 2.22 | 2.34 | 2.40 | 2.47 | 2.59 | 2.71 | 2.84 | 2.96 | 3.08 | 3.14 | 3.21 | 3.27 |